S-98940A308 1"-5 x 18" Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Exceptional precision with ±0.009" per foot accuracy ensures reliable, repeatable motion control in automated systems.
• Superior durability from hardened 4140 alloy steel construction resists wear and deformation in high-load applications.
• Optimized power transmission with a 0.2" travel per turn provides efficient linear motion for industrial machinery.
• Enhanced corrosion resistance through the black-oxide surface treatment prolongs service life in harsh environments.
• High load-bearing capacity supported by 125,000 psi tensile strength and Brinell 271 hardness for demanding operations.
• Reliable thread engagement with Class 2C fit and ACME thread design ensures smooth, low-backlash performance.
• Regulatory compliance with RoHS 3 standards guarantees environmental safety for global industrial use.

Professional Applications & Engineering Value

This 1"-5 ACME lead screw is engineered for precision motion control systems where accuracy and durability are critical. Manufactured from black-oxide 4140 alloy steel and hardened to Brinell 271 hardness, it addresses common industrial challenges such as mechanical wear, positional inaccuracy, and environmental degradation. The fully threaded design with right-hand ACME threads provides consistent force transmission in CNC machinery, automated positioning systems, and heavy-duty actuators. Its ±0.009" per foot accuracy and 0.2" travel per turn make it ideal for applications requiring precise linear movement, while the robust material composition ensures long-term performance under continuous operational stress, reducing maintenance frequency and downtime.

Specification Summary & Compliance

This precision ACME lead screw features a 1"-5 thread size with Class 2C thread fit per industry standards, ensuring dimensional consistency and compatibility with standard nuts. The 18" length and single thread start provide straightforward integration into various mechanical assemblies. It complies with RoHS 3 (2015/863/EU) regulations, confirming its suitability for environmentally conscious industrial markets. The specified tensile strength of 125,000 psi and hardness rating validate its conformance to high-performance mechanical component requirements.